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In Reply to: tube flash posted by dstrachangolf on September 22, 2004 at 09:30:06:
Problem is poor thermal contact between the heater and the cathode.It doesn't take a rocket scientist to figure out that bringing the wire to over 1000 deg C temperature every time you turn the tube on is not going to be good for it. How this will affect the *real* tube life depends on many other things, and the fact that such tubes have lasted for long time in equipment is well known.
So yes, a defect, but don't lose any sleep over it.
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Follow Ups
- A clear design defect - Victor Khomenko 13:36:22 09/22/04 (0)